Question

Fill in the blank with the most appropriate word.
A: Alex had to stay in bed for $5$days.

B: _______.

• A. I had to
• B. So did I
• C. Pier had too
• D. So had I
• E. I do too

Answer 1

Answer: (B)

So did I

To express equal and same opinion about something, "so" is used in the answer which is in the same tense as the previous opinion. Hence, Option B is correct. The rest of the options do not adhere to this rule, hence incorrect.